The recipe The following is taken verbatim from Apicius of Apicio, considered the first great chef in history.
The sauces, in general, They were much loved by the Romans, who used to accompany almost any dish.
The white sauce suggested by Apicius, It was ideal to flavor the boiled meat.
Recipe, easy, It consisted in mixing these ingredients to perfection: “pepe, garum, came, route, onion, Pine nuts, spiced wine, a little soaked bread to thicken and oil”.
The garum, I have treated this post https://www.pilloledistoria.it/1787/storia-antica/garum-liquamen-salsa-preferita-dai-romani, was a sauce made with fish entrails left to soak in the sun for which the Romans went literally crazy, as well as the’olive oil was also food is critical in the era (Photo gives: andreacaudivisual.blogspot.it/).